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84
Positioning capability temporarily
degraded after battery reconnect
When your vehicle is started, the Lincoln RESCU
GPS receiver begins the process of determining
vehicle location. The receiver will search the sky
and attempt to acquire signals from all visible
satellites. A real-time clock and an almanac
containing detailed information about the satellite
constellation are stored in the on-board computer’s
memory and are used to expedite the search. If the
vehicle’s battery is disconnected, the clock memory
is erased and time and date are lost. Once the
battery is reconnected, it could take approximately
15 minutes to reacquire the clock and for
positioning capability to be restored. During this
time, the system will operate but the response
center will not be able to identify your location. In
this situation, the operator will depend on you to
provide verbal information regarding vehicle
location.
Inoperative if cellular signal marginal or
unavailable
Since the Lincoln RESCU System utilizes the
vehicle’s cellular phone, it can only be operated in
geographical areas with cellular coverage. Although
approximately 90 percent of the U.S. population
lives and works in cellular coverage areas, there are
various rural or mountainous areas where coverage
is marginal or does not exist. If an activation occurs
in this situation, the messages “NO CELLULAR
SIGNAL” and “WAITING TO ACQUIRE” will
alternately be displayed on the Message Center. If
after several attempts cellular service cannot be
acquired, the message “UNABLE TO PLACE CALL”
will be displayed, the assistance request will be
terminated and the phone will return to its normal
operating mode.
File:05fncfc.ex
Update:Fri Sep 6 14:53:57 1996
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